This story appears in the July 2015 issue of National Geographic magazine. Small, cold, and absurdly far away, Pluto has always been selfish with its secrets. Since its discovery in 1930 ...

An curved arrow pointing right. NASA released this video made from over 100 high-resolution images taken of the former planet Pluto. It gives us a never-before-seen view of the details on the surface.

The flyby, set to occur in the early morning of January 1, 2019, will be the second for New Horizons, following its historic 2015 Pluto flyby. It will also be the furthest flyby from Earth ever ...

Sputnik Planitia is a white basin measuring 750 by 1,250 miles near Pluto's equator that was discovered during the flyby. Although the dwarf planet is covered in an ice shell, that thins ...

a previously unknown ancestor to humans and the Pluto flyby, which allowed scientists to get an up-close view of Pluto and its moons for the first time ever. Science's John Travis explained that ...

For decades, astronomers suspected that Pluto and Charon formed through a process similar to Earth and the Moon. This theory, ...

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A group of New Horizons scientists took to Reddit on July 14 to answer questions about the Pluto flyby, and it quickly became clear that the preliminary data holds some curiosities. For starters ...

As science teams and researchers spent 2017 pouring through the wealth of data returned by the New Horizons spacecraft during its historic flyby of the dwarf planet Pluto in July 2015, the ...

NASA launched a spacecraft to Pluto! New Horizons is a spacecraft about the size of a grand piano, and it became the first ...